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Problems dealing with various probabilities, be it coin tossing or game winning.
Difficulty: 3 of 5 Latest: Red and Yellow Rating: 4.50
A bag contains an unknown number of red balls and yellow balls. When N balls are drawn at random (without replacement) the probability that they are all yellow is 1/2. The number of balls in the bag is the minimum for this to happen.

If the first N balls were all yellow, what is the probability that the next ball drawn is red?

Express the probability as a function of N.

(No Solution Yet, 7 Comments) Submitted on 2024-04-16 by K Sengupta   
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